针对SDZ20型轮式装载机的工作装置 ,建立了与实际情况吻合的三维有限元模型 ,在典型载荷工况下 ,进行静态结构分析 ,得到了整个工作装置的应力、变形分布 ,分析的结果可作为装载机工作机构设计和结构优化的依据 ,并对工程机械及同类结构有一定的指导意义 According to the working device of SDZ20 wheel loader, a three-dimensional finite element model is set up in accordance with the actual situation. Under the condition of typical load, the static structure analysis is carried out and the stress and deformation distribution of the whole working device are obtained. As the basis for the design and structure optimization of the working mechanism of the loader, it has some guiding significance for the construction machinery and similar structures